ORIGINAL: HighPlains
The Sig Mustang 450 was hopelessly out of date by the time I was racing Formula One, so I never have seen one firsthand. By the late 80's, top F1's were pushing around 175 mph on the course, and some have exceeded 200 mph in longer straight line passes verified by radar. It just takes power, which 65% nitro burning 40's could produce at 27,000+ rpm.
As to wing strength, I could support the wings close to the tips and stand on the center section without a failure, and this was after some damage was sustained in a crash. Of course, I only weighed about 165 lbs then. The key to strength was 3/32 skins, 1/8 spar, 3/4 oz cloth, and 3 layers of 2 oz cloth of staggered widths at the center section.
I agree withe the 450 being out of date. I guess that's the reason it has set for the last 30 years without being built. I just finished one wing panel on the 450. Used Elmer's brand poly glue. I decided to do one panel at a time so as not to feel rushed. It is curing as I type
I'll post a photo or two of the mess after it's done doing it's thing.
I'll have to say applying the poly glue was as easy or easier that epoxy. I was afraid the open time would be and issue. After the fact I was thinking having a notched trowel would be the ticket to getting an even coverage. Anybody who's laid ceramic tile will know what I'm talking about. Does anybody have any ideas about a notched trowel with about a 1/32 notch or a bit smaller????
ken